45 lines
996 B
Rust
45 lines
996 B
Rust
// run-rustfix
|
|
|
|
#![allow(clippy::needless_borrowed_reference)]
|
|
|
|
fn x(y: &i32) -> i32 {
|
|
*y
|
|
}
|
|
|
|
#[warn(clippy::all, clippy::needless_borrow)]
|
|
#[allow(unused_variables)]
|
|
fn main() {
|
|
let a = 5;
|
|
let b = x(&a);
|
|
let c = x(&a);
|
|
let s = &String::from("hi");
|
|
let s_ident = f(&s); // should not error, because `&String` implements Copy, but `String` does not
|
|
let g_val = g(&Vec::new()); // should not error, because `&Vec<T>` derefs to `&[T]`
|
|
let vec = Vec::new();
|
|
let vec_val = g(&vec); // should not error, because `&Vec<T>` derefs to `&[T]`
|
|
h(&"foo"); // should not error, because the `&&str` is required, due to `&Trait`
|
|
let garbl = match 42 {
|
|
44 => &a,
|
|
45 => {
|
|
println!("foo");
|
|
&&a // FIXME: this should lint, too
|
|
},
|
|
46 => &a,
|
|
_ => panic!(),
|
|
};
|
|
}
|
|
|
|
fn f<T: Copy>(y: &T) -> T {
|
|
*y
|
|
}
|
|
|
|
fn g(y: &[u8]) -> u8 {
|
|
y[0]
|
|
}
|
|
|
|
trait Trait {}
|
|
|
|
impl<'a> Trait for &'a str {}
|
|
|
|
fn h(_: &dyn Trait) {}
|